Water-gage for steam-boilers.



PATENTED MAR. 31, 1908.

v E. F. ALEXANDER. WATER GAGE FOR STEAM BOILERS.

APPLICATION FILED 1030.19, 1907.

v u m A X M q E q A ,T m M m 1 9i in can:

UNITED STATES PATENT OFFICE.

WATER-GAGE FOB STEAM-BOILERS.

Specification of Letters Patent.

Patented March 31, 1908.

Application filed December 19, 1907. Serial No. 407,201.

To all whom it may concern:

Be it known that I, EDWARD F. ALEXAN- DER, a citizen of the UnitedStates, residing at Salem, in the county of Harrison and State of WestVirginia, have invented certain new and useful Improvements inVVater-Gages for Steam-Boilers and I do hereby. declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

This invention relates to new and useful improvements in water gage forsteam boilers and the object in View is to produce a simple andefficient device in which a suitable packing may be fed forward as itwears away, thereby avoiding the replacing of packing strips commonlyused upon devices of this nature.

The invention comprises various details of construction and combinationsand arrangements of parts which will be hereinafter fully described andthen specifically defined in the appended claims.

. My invention is illustrated in theaccompanying drawings, in whichFigure 1 is a perspective View of my improved water gage for steamboilers, and Fig. 2 is a longitudinal sectional view through the same.

Reference now being had to the details of the drawings by letter, Adesignates the shell which has a threaded portion A adapted to engagethe threaded opening in the boiler, said shell being chambered andprovided with an exit opening B. The portion of said shell about saidexit opening is provided with wings C and D, the latter of which isapertured to receive a pivot pin E mounted upon one of the wings E ofthe shell F, which latter has a series of threads F about its shankportion and adapted to engage the threads H formed on the innercircumference of the chamberedportion of the handle N. Said shankportion F of the shell F is provided with a longitudinal apertureextending therethrough and in which a packing K, of lead or any othersuitable material, is provided, said packing having its forward endtapering and adapted, when the shell F is closed, to form a valveentering the tapering end of the exit opening B. Said I packing, whichis made in pencil form, has a longitudinal movement in the aperture inwhich it is positioned, and R designates a pin which projects from thebottom of the chamber in said handle and is adapted to pass through theopening in the shank F and to bear against the end of said pencil ofpacking. As the handle is turned upon the threaded portion ofthe shellF, it will be observed that the packing strip will be fed forward tocompensate for wear.

By the construction shown and described, it will be observed that, whenit is desired to feed the packing forward a slight distance, a partialrotary movement is given to the andle which will cause the pinprojecting from the end wall of the chamber of the handle to bearagainst the packing strip so that'the outer end of the packing stripwill engage the tapering wall in the end of the exit opening and shellA, thereby making a steam and water tight valve or closure.

What I claim to be new is 1. A water gage for steam boilers comprising,in combination with a shell which is adapted to engage a boiler andcommunicate with the interior thereof, a pivotal valve shell mountedupon said boiler engaging shell, a movable packing strip mounted withinthe shank portion of said pivotal valve shell, a handle mounted upon thelatter and adapted to move said packing strip longitudinally, as setforth.

2. A water gage for steam boilers comprising, in combination with ashell which is adapted to engage a boiler and communicate with theinterior thereof, a pivotal valve shell mounted upon said boilerengaging shell, a movable packing strip mounted within the shank portionof said pivotal valve shell, a handle mounted upon the latter, a fingermovable with the handle and adapted to engage and move said packingstrip lon gitudinally as" the handle is turned, as set forth.

3. A water gage for steam boilers comprising, in combination with ashell which is adapted to engage a boiler and communicate with theinterior thereof, a pivotal valve shell mounted upon said boilerengaging shell, a movable packing strip mounted within the shank portionof said pivotal valve shell, a handle having a chambered portion toreceive the shank portion of said pivotal valve shell, a finger fixed tothe handle and adapted to contact with the strip of packing in saidvalve shell and move the latter longitudinally as the handle is rotated,as set forth.

4. A water gage for steam boilers comprising, in combination with. ashell which is adapted to engage a boiler and communicate with theinterior thereof, a pivotal valve shell mounted upon said boilerengaging shell, a movable packing strip mounted within the shank portionof said pivotal valve shell, a handle having a chambered portion .toreceive the shank portion "of said pivotal valve shell, the end Wallofsaid chamber having threads thereon adapted to engage threads upon theshank of the valve shell, a finger projecting from the end wall of thechamber of the handle and adapted to pass through an aperture in theshank portion of the valve and bear frictionally against said packingstrip as the handle is rotated, as set forth.

In testimony whereof I hereunto afiiX my signature in the presence oftwo witnesses. EDWARD F. ALEXANDER. Witnesses:

E. B. FrrTRo, H. L. NUTTER.

